Improvement in woven-wire fabrics



J. M. FARNHAM.

Improvement in Woven Wire-Fabrics.

Patented Aug. 27,1872.

Zara 72 3:- (r sul'xc'x ov AM P/IOTOUTHGORAP/IIF 5'6. Ml SHER/V53PROCESS} UNITED STATES PATENT CFFICEJ JOHN M. FARNHAM, OF HARTFORD,CONNECTICUT.

IMPROVEMENT IN WOVEN-WlRE FABRICS.

Specification forming part of Letters Patent No. 130,796, dated August27, 1872.

SPECIFICATION.

I, JOHN M. FARNHAM, of Hartford, in the county of Hartford and State ofConnecticut, have invented certain new and useful Improvements inFabrics of Woven Wire, of which the following is a specification,reference being had to the accompanying drawing, in which- Figure 1 is aplan view of such fabric. Fig. 2 is an end view of the same. Fig. 3 is aplan view of such fabric woven double. Fig. 4 is an end view of thefabric shown in Fig. 3.

The woven-wire fabric referred to is used for beds, sofas, chairs, andthe like, and the kinds in use heretofore have been composed eitherwholly or in great part of cylindrical spiral coils of wire.

My improvement consists in making these spiral coils oval in shapeinstead of cylindrical. By this means I-save nearly or quite one quarterof the amount of wire needed to make a fabric of a given size. I alsoproduce a fabric which has a more nearly even and flat surface, andwhich can more readily be rolled than ed with wire fabrics as singleweave, the intertwined coils being single.

These fabrics can be woven double, triple, &c., and are then known asdouble-weave, triple-weave, &c. The double-weave, composed wholly ofoval spiral coils, is shown in Figs. 3 and 4.

In a previous patent issued to me I have shown three oval spiral coilsinterlaced with circular spiral coilsy and it is not intended to claimin this pate'ntthe use'of oval spirals in every possible combination,but only when the fabric is composed wholly of oval spirals. Fur-

